Implementing custom Markdown parser with the MD Library

[mudasobwa]

Sidenote: Handling a tag with and without attributes by the same code should be as easy as swapping splits

@Exadra37

- [tag, rest] = String.split(input, " ", parts: 2)
- [content, rest] = String.split(rest, "</.#{tag}>", parts: 2)
- [attrs, content] = String.split(content, ">", parts: 2)
+ [attrs, rest] = String.split(input, ">", parts: 2)
+ [content, rest] = String.split(rest, "</.#{tag}>", parts: 2)

What worries me, is generating of the HTML where it should not technically be generated.

@Exadra37

    html = Md.Parser.generate(content)
    html = "<.#{tag} #{attrs}>#{html}</.#{tag}>"

I am not sure it would work properly with nested tags, although it seems it would, still it looks like a kludge. Md.Parser supports attaching a listener, which might modify the result, and we should at least re-pass it to the underlying generate/2. Also, it’d fail on creating deferred links ([foo][1] followed by [1] link,) and lose the context in general, when not surrounded by \n\n.

md is a streaming parser, unlike [H]EEx, which makes it less trivial to interoperate with other engines.

Anyway, I will think about how can it be done without leaving AST representation and come back to you.